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Amanda backup restore

Posted on 2014-04-16
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Last Modified: 2014-04-22
Hi Expert,

i've taken backup successfully.How to restore it.

Regards,
Xerox
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Question by:xeroxzerox
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12 Comments
 
LVL 80

Expert Comment

by:arnold
ID: 40006336
On the system where you want data restored, you need to launch the client.
Which  OS is used on the system where you want data restored.
Have a look at the Amanda wiki, they have different guides/examples.
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Author Comment

by:xeroxzerox
ID: 40008317
yesterday,i've taken the backupby amanda..it was working but today,again i'm trying to take backup.now it's not working.
is the issue in vtape or any configuration?
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Expert Comment

by:arnold
ID: 40008464
Look at wha error is reported.
If you are changing what you are asking, please provide details and error messages/entries from log if any.
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LVL 6

Author Comment

by:xeroxzerox
ID: 40008494
Thanks Arnold,

error mentioned below.

amandabackup@amanda:/data/amanda/vtape/DailySet1$ amrestore DailySet1
ERROR: Can't open tape device DailySet1: No such file or directory

root@amanda:/etc/amanda# ll
amanda-client.conf*  DailySet1/  exclude.gtar  template.d/



can you please explain me.if i take one full backup and incremental backup(2 to 30 days).
then how much tapecycle i needed & what is runspercycle & runtapes.
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Expert Comment

by:arnold
ID: 40008507
What tape device do you have?
How many tapes do you have?

http://wiki.zmanda.com/index.php/Tapecycle
Includes links to the two other items.

How much data are you backing up? Look at the report of the successful backup.
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Author Comment

by:xeroxzerox
ID: 40010082
I don't have tape device and tapes for backup. I'm using vtape.and backup size is 70-90GB
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Expert Comment

by:arnold
ID: 40010091
How much storage do you have allocated for vtape?
The issue/error is caused by lack of resources.
I.e. Your allocation

http://wiki.zmanda.com/index.php/How_To:Set_Up_Virtual_Tapes
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Author Comment

by:xeroxzerox
ID: 40012001
i've storage space in TB.i'm again going to configure..
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Accepted Solution

by:
arnold earned 2000 total points
ID: 40012011
Ok, 1TB 90GB backup
Using the link provided to http://wiki.zmanda.com/index.php/How_To:Set_Up_Virtual_Tapes
Do you want vtape in the size of your backup, or do you want to use smaller vtapes spanning multiple location?
tapelength=90GB
Tapecycles=10

or
tapelength=30GB
tapecycles=30

The configuration options can be seen in the guide
http://wiki.zmanda.com/index.php/How_To:Set_Up_Virtual_Tapes
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Author Comment

by:xeroxzerox
ID: 40012227
Thanks  Arnold,

tapecycles=30, it's mean backup run daily 30 days  in tapecycle .if suppose all 30 tapecycle used then i need to configure again tape cycle.is it right?
or
change the path of next backup location by Using the new chg-disk.
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LVL 80

Expert Comment

by:arnold
ID: 40012532
With the current data it will be approximately 30 days. The oldest tape will be overwritten on the 31st day.
 However, if your backup data grows, where two tapes are consumed for each backup, the 1st tape will be overwritten sooner.

I am not sure what it is you are trying to do.  Once you define the location/s for the vtapes and the cycle, the oldest "tape" is overwriten by the new backup.
If you want to continually switch a 1TB disk i.e. 20-30 tapecycles, replace the drive, you would need to define the larger cycle i.e. 60 tapecycles, where 0-29 will be on disk one and 30-59 will be on disk two.

Please look at the vtape help page link.  It discusses how to use a "tape changer" which is what presumably your question is about with the chg-disk.
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Author Closing Comment

by:xeroxzerox
ID: 40014255
Thanks Arnold...
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